PLC Programming

PLC Configuration
All modules starting with the one, which is currently selected in the configuration tree, will be
regarded.
Return to standard configuration, 'Extras' 'Standardconfiguration'
The command 'Extras' 'Standardconfiguration' can be used to restore the original PLC configuration,
which is defined by the configuration file and saved in the project.
Converting of old PLC configurations, 'Extras' 'Convert'
This command is available in the menu 'Extras' if you open a project containing a PLC configuration,
which was created with an older CoDeSys version than V2.2. If all needed configuration files are
available, the command 'Convert' will transfer the existing configuration into the format of the actual
PLC configuration. A dialog will open which asks "Convert the configuration to the new format
Attention: Undo is not possible !" You can select Yes or No. If you close the dialog with Yes, the
configuration editor will be closed also. Reopen it and you will see the configuration in the new format.
Be aware that after having converted the old format cannot get restored anymore !
6.5.2 General Settings in the PLC Configuration
Select the entry 'PLC configuration' ('root' module) at top of the configuration tree. Thereupon the
dialog 'Settings' is shown in the right part of the window:
Calculate addresses: Each newly inserted module automatically is allocated with an address, which
results from the address of the module inserted before plus the size of this address. If a module is
removed from the configuration, the addresses of the following modules are adjusted automatically.
When the command 'Extras' 'Compute addresses' is executed, all addresses starting at the selected
node (module) will be recalculated.
Check for overlapping addresses: At compilation the project will be checked for overlapping
addresses and a corresponding message will be displayed.
Dialog for the general Settings of the PLC configuration
The global mode of addressing (flat addresses / addresses depending on Id) in the PLC configuration
is defined in the configuration file.
6.5.3 Custom specific parameter dialog
The parametrizing possibilities of the configurator can be expanded by the use of an applicationspecific
DLL, that is an individual dialog. This 'Hook'-DLL must be in that directory which contains the
configuration file and then can be linked by an entry in the configuration file.to a module or channel. If
done so, for the concerned modules the standard dialog 'Modulparameter' will be replaced by a dialog
defined in the DLL.
6-14 CoDeSys V2.3